# HiFi Boy OS V3
See [usage instructions](https://github.com/jaakkopasanen/AutoEq#usage) for more options and info.

### Parametric EQs
You can use filters 1-5 or 1-10. Apply preamp of -5.7 dB or -6.5 dB, respectively.

|   # | Type      |   Fc (Hz) |    Q |   Gain (dB) |
|-----|-----------|-----------|------|-------------|
|   1 | LowShelf  |       105 | 0.7  |         1.8 |
|   2 | Peaking   |       197 | 0.57 |        -5.7 |
|   3 | Peaking   |       832 | 2.46 |         2   |
|   4 | Peaking   |      4776 | 0.34 |         4   |
|   5 | Peaking   |      6003 | 6    |         1.7 |
|   6 | Peaking   |      1017 | 4.52 |         1.1 |
|   7 | Peaking   |      1293 | 3.27 |        -1.8 |
|   8 | Peaking   |      2200 | 3.23 |         1   |
|   9 | Peaking   |      7599 | 5.43 |        -4.1 |
|  10 | HighShelf |     10000 | 0.7  |         5.6 |

### Fixed Band EQs
When using fixed band (also called graphic) equalizer, apply preamp of **-12.2 dB** (if available) and set gains manually with these parameters.

|   # | Type    |   Fc (Hz) |    Q |   Gain (dB) |
|-----|---------|-----------|------|-------------|
|   1 | Peaking |        31 | 1.41 |         1.5 |
|   2 | Peaking |        62 | 1.41 |         0.7 |
|   3 | Peaking |       125 | 1.41 |        -3.5 |
|   4 | Peaking |       250 | 1.41 |        -5.1 |
|   5 | Peaking |       500 | 1.41 |        -0.8 |
|   6 | Peaking |      1000 | 1.41 |         1.5 |
|   7 | Peaking |      2000 | 1.41 |         1.8 |
|   8 | Peaking |      4000 | 1.41 |         4.2 |
|   9 | Peaking |      8000 | 1.41 |         2.5 |
|  10 | Peaking |     16000 | 1.41 |        12   |

### Graphs
![](./HiFi%20Boy%20OS%20V3.png)
